I’m using a Fellow Stag and a metal V60 with a fabric filter. I do a 1:16 ratio (16g of coffee and 256g of water). Generally I’ll place the V60 on the Stag while it brings the water up to a boil in order to heat it up. Then I’ll saturate the fabric filter with the hot water. I’ll use 212F water, but after pouring the water over the grounds, my instant read thermometer will read 195F. It seems weird that despite doing everything in my power to preheat all the equipment, the water drops a lot in temperature as soon as it hits the grounds. Any tips to tackle this problem?
Since the coffee grounds are at ambient temperature, there is no way to prevent a temp drop when you first pour over.
Don’t worry though, it happens with every single brew method. The methods specify the water temp that you pour/brew with, not the outlet water temp.
Sounds like you’re doing enough to preheat your brewing eqpt, but keep in mind if you wet the filter then let it sit for even a minute, it will be cold. Make sure your v60 is nice and hot, that will retain temp much better than your filter.
Overall it sounds like you’re keeping an eye on some of the right things, just don’t worry so much about outlet temp so long as you’re preheating as much as possible. Cheers!